ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 345 



Sauveur, A. — Microstructure of Coke and Charcoal Pig Irons. 



[Discusses whether these can be microscopically distinguished.] 



Metallograplmt, i. (1900) pp. 154-6 (2 figs.). 

 ,, „ The Constitution of Hardened Steel. 



[A. Sauveur criticises the experiments and conclusions of Messrs. Arnold 

 and M'WiUiam on this subject (see p. 344), and dissents from their 

 views.] Metallograplmt, i. (1899) pp. 305-14 (G figs.). 



Stead, J. E. — Brittleness produced in Soft Steel by Annealing. 



[A valuable discussion of the subject, illustrated by excellent diagrams and 

 photomicrographs.] 



Metallographist, i. (1899) pp. 85-105 (8 figs, and 1 pi.). 



„ „ Microstructure of Alloys. 



[The author lias continued his study of this subject. He mainly treats of 

 alloys of antimony and copper, and briefly of alloys of antimony-tin and 

 copper-tin. The antimony-copper alloys are of no practical value, and 

 were examined for theoretical reasons only. The results are illustrated 

 by 12 very clear photomicrographs.] 



Metallograplmt, i. (1899) pp. 314-34 (12 figs.). 



